Question

find the inverse of the function f(x)=x^3-8 (urgently needed plz)

Answer 1

y = x^3 - 8

Make x the subject.

Answer 2

i have four options to choose from

Not a one-to-one function

2) f^-1(x)= 3sq x+8


3) f^-1(x)=3sq x-8

4) f^-1 (x) = 3 sqx=8

Answer 3

which one would be the right option

Answer 4

take f^-1(y)=x
y=x^3-8
\[\sqrt[3]{y+8}=x\]

so
f^-1(y)=\[\sqrt[3]{y+8}\]

Answer 5

2) f^-1(x)= 3sq x+8 ur answer

Answer 6

thankyou so much.

Answer 7

medal plz :)

Answer 8

im new to this thing. how do u do that?

Answer 9

i'm new too. You give a medal by clicking on "best response".

Answer 10

yep i got it thankyouuu! :D

Answer 11

But I don't think I can give myself a medal...

Answer 12

yep i think so too

Answer 13

a medal for you from me then...

Answer 14

awww thankyou